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/*
* Copyright (c) 2015 ARM Limited
* All rights reserved
*
* The license below extends only to copyright in the software and shall
* not be construed as granting a license to any other intellectual
* property including but not limited to intellectual property relating
* to a hardware implementation of the functionality of the software
* licensed hereunder. You may use the software subject to the license
* terms below provided that you ensure that this notice is replicated
* unmodified and in its entirety in all distributions of the software,
* modified or unmodified, in source code or in binary form.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: David Guillen Fandos
*/
#ifndef __SIM_THERMAL_DOMAIN_HH__
#define __SIM_THERMAL_DOMAIN_HH__
#include <vector>
#include "base/statistics.hh"
#include "params/ThermalDomain.hh"
#include "sim/power/thermal_entity.hh"
#include "sim/sim_object.hh"
class SubSystem;
class ThermalNode;
template <class T> class ProbePointArg;
/**
* A ThermalDomain is used to group objects under that operate under
* the same temperature. Theses domains can be tied together using thermal
* models (such as RC) to model temperature across components.
*/
class ThermalDomain : public SimObject, public ThermalEntity
{
public:
typedef ThermalDomainParams Params;
ThermalDomain(const Params *p);
/**
* Get the startup temperature.
*
* @return Initial temperature of the domain
*/
double initialTemperature() const { return _initTemperature; }
/**
* Get the current temperature.
*
* @return Initial temperature of the domain
*/
double currentTemperature() const;
/** Set/Get circuit node associated with this domain */
void setNode(ThermalNode * n) { node = n; }
ThermalNode * getNode() const { return node; }
/** Get nodal equation imposed by this node */
LinearEquation getEquation(ThermalNode * tn, unsigned n,
double step) const override;
/**
* Emit a temperature update through probe points interface
*/
void emitUpdate();
/**
* Set the SubSystem reference we belong to
*/
void setSubSystem(SubSystem * ss);
void regStats() override;
void serialize(CheckpointOut &cp) const override;
void unserialize(CheckpointIn &cp) override;
private:
double _initTemperature;
ThermalNode * node;
SubSystem * subsystem;
/** Stat for reporting voltage of the domain */
Stats::Value currentTemp;
/** Probe to signal for temperature changes in this domain */
ProbePointArg<double> *ppThermalUpdate;
};
#endif
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